Sheet-gripping means for sheet-controlling gates



Dec; '2? 9 1,609,904

A. 'BROADMEYER SHEET GRIPPING MEANS FOR SHEET CONTROLLING GATES Filed July 2 1925 IN ENTOR A ITORJEJIEY Patented Dec. 7., 1926.

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hearse star ALBERT BROADI/IEYEB, OF HARRISBURG, PENIESYLVANIA, ASSZGNOR TO V]. O. HICKOK MFG. COMPANY, OF HARRISBURG. PENNSYLVANIA, A GGBPORATIOK OF FENII- SYLVANIA.

SHEET-GRIPPIING IVIEAII- FOR SI-IEET-COIITRGLLING GATES.

Application filed July 2, 1925. Serial No. 41.161.

In connection with the gates that control the passage of sheets to ruling machines, folding machines and the like there appears to be a slight delay on the part of the sheet resting on the usual conveyor, to start immediately when the gate is raised to permit the passage of the sheet, due evidently to inertia, and while this delay is very slight, it does aiiect the accuracy of register in the subsequent operations on the sheet.

The object of the present invention is to provide means to overcome to a material extent this inertia by insuring the starting of the sheet as soon as it is released by the gate.

In the accompanying drawings:

Figure 1 is a side elevation of the gate of a ruling machine or the like with the gripping means applied thereto, and showing the gate in its active position to stop a sheet,

Figure 2 is a similar view, but with the gate elevated to release the sheet, and showing said sheet gripped to the conveyor,

Figure 3 is a cross sectional view through the mechanism.

In the embodiment disclosed, the gate, as usual, consists of a rock shaft 3, which may be operated by any well-known mechanism, said rock shaft carrying a depending plate l, which when in vertical position, is in close association with the sheet conveyor belt 5. When the rock shaft is turned, the gate is raised sufficiently, as indicated in Figure 4, to allow the passage of the sheet beneath it. So far as thus described the structure is well-known.

In the present embodiment, there is mounted on the rock shaft a pair of rearwardly extending arms 6. The mountings for said arms consist of split collars 7 that embrace the shaft and are contracted thereupon by tension bolts 8. The rear ends of the arms have transversely disposed slots 9. in which are loosely engaged the gudgeons 10 of a roller 11. This roller is preferably light in Weight, and may be of sheet metal, formed into a hollow cylinder, as indicated in Figure 3. The arms 6, slots 9 and gut].- geons 10 are so related that when the gate at is in its active position, as shown in Figure 1, the roller will be elevated above the conveyor and sheet placed thereon, but when the rock shaft is turned to raise the gate 4, and permit the passage of the sheet the roller 11 drops on to said sheet and thus grips it to the conveyor 5. As a consequence the sheet will start immediately with the conveyor, and its proper position thereon is more accurately secured.

From the foregoing, it is thought that the construction, operation and many advantages of the herein described invention will be apparent to those skilled in the art without further description, and it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to Without departing from the spirit or sacrificing any of the advantages of the invention.

WVhat I claim, is:

1. The combination with a sheet conveyor, of a gate for controlling the movement of the sheets by the conveyor, means for causing the sheet to grip the conveyor, and a common movable support carrying-the gate and gripping means and operable to move the gate to an inoperative position and the gripping means to an inoperative position and vice versa.

2. The combination with a sheet conveyor, of a gate for controlling the movement of the sheets by the conveyor, means for causing the sheet to grip the conveyor, and a common movable support carrying the gate and gripping means and located above the conveyor and supporting the gate and gripping means, said support being movable in one direction to move the gate to an inoperative position and the gripping means to an inoperative position and in an opposite direction to move the gate to an operative position and the gripping means to an inoperative position.

8. The combination with a sheet conveyor, of a rock shaft thereover, a gate carried by the rock shaft and movable into and out of coaction with the conveyor, forwardly extending arms fixed to the rock shaft, and a having transverse slots in their free ends, and a roller journaled in the slots and mov- 10 able into coaction with the conveyor when the gate moves out of such coaction.

In testimony whereof, I aflix my signature.

ALBERT BROADMEYER] 

